When civil engineers design bridges and buildings, they must take into account factors like balance and motion. This unit introduces the principles behind “push” and “pull” as they explore how forces act on different structures. They’ll use what they know about balance and force as they experiment with beam, arch, and suspension bridges. Students plan, build, and test their own bridges. Students will also learn how to support and protect buildings during earthquakes. Students will engineer model buildings that are earthquake resistant while exploring how earthquakes impact buildings of different heights and shapes. Developed by Engineering is Elementary, Museum of Science Boston.